Here is the updated log:
Feb 3 22:47:20 localhost journal: plesk sendmail[98433]: SKIP during call 'check-quota' handler
Feb 3 22:47:20 localhost postfix/pickup[67391]: 82CEC67C2: uid=10000 from=<
eacevedo@aitcloudns.com>
Feb 3 22:47:20 localhost postfix/cleanup[98164]: 82CEC67C2: message-id=<
2d17a5d0f1fe805ad3108553de2700c3@asesoriasit.com>
Feb 3 22:47:20 localhost postfix/qmgr[128801]: 82CEC67C2: from=<
eacevedo@aitcloudns.com>, size=826, nrcpt=1 (queue active)
Feb 3 22:47:20 localhost postfix/local[98168]: 82CEC67C2: to=<
eacevedo@asesoriasit.com>, relay=local, delay=0.03, delays=0.02/0/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
Feb 3 22:47:20 localhost postfix/qmgr[128801]: 82CEC67C2: removed
Feb 3 22:47:20 localhost check-quota[98441]: Starting the check-quota filter...
Feb 3 22:47:20 localhost journal: plesk sendmail[98440]: handlers_stderr: SKIP
Feb 3 22:47:20 localhost journal: plesk sendmail[98440]: SKIP during call 'check-quota' handler
Feb 3 22:47:20 localhost postfix/pickup[67391]: 986F567C2: uid=10000 from=<
eacevedo@aitcloudns.com>
Feb 3 22:47:20 localhost postfix/cleanup[98164]: 986F567C2: message-id=<
9f0c0719634ad17205dac660a3c634f9@asesoriasit.com>
Feb 3 22:47:20 localhost postfix/qmgr[128801]: 986F567C2: from=<
eacevedo@aitcloudns.com>, size=19981, nrcpt=1 (queue active)
Feb 3 22:47:20 localhost check-quota[98448]: Starting the check-quota filter...
Feb 3 22:47:20 localhost journal: plesk sendmail[98447]: handlers_stderr: SKIP
Feb 3 22:47:20 localhost journal: plesk sendmail[98447]: SKIP during call 'check-quota' handler
Feb 3 22:47:20 localhost postfix-local[98449]: postfix-local: from=
eacevedo@aitcloudns.com, to=
eli@aitb2b.com, dirname=/var/qmail/mailnames
Feb 3 22:47:20 localhost postfix/pickup[67391]: A9A344D4C3: uid=10000 from=<
eacevedo@aitcloudns.com>
Feb 3 22:47:20 localhost postfix/cleanup[98164]: A9A344D4C3: message-id=<
b6455c6a4e93b419b2f3493d4f745127@asesoriasit.com>
Feb 3 22:47:20 localhost postfix-local[98449]: cannot chdir to mailname dir eli: No such file or directory
Feb 3 22:47:20 localhost postfix-local[98449]: Unknown user:
eli@aitb2b.com
Feb 3 22:47:20 localhost postfix/qmgr[128801]: A9A344D4C3: from=<
eacevedo@aitcloudns.com>, size=19973, nrcpt=1 (queue active)
Feb 3 22:47:20 localhost postfix/trivial-rewrite[98165]: warning: do not list domain asesoriasit.com in BOTH mydestination and virtual_mailbox_domains
Feb 3 22:47:20 localhost postfix/pipe[98171]: 986F567C2: to=<
eli@aitb2b.com>, relay=plesk_virtual, delay=0.1, delays=0.03/0.01/0/0.06, dsn=2.0.0, status=sent (delivered via plesk_virtual service)
Feb 3 22:47:20 localhost postfix/qmgr[128801]: 986F567C2: removed
Feb 3 22:47:20 localhost postfix/local[98168]: A9A344D4C3: to=<
eacevedo@asesoriasit.com>, relay=local, delay=0.04, delays=0.03/0/0/0.01, dsn=2.0.0, status=sent (delivered to mailbox)
Feb 3 22:47:20 localhost postfix/qmgr[128801]: A9A344D4C3: removed